import turtle
turtle.fillcolor("blue")
turtle.begin_fill()
turtle.right(90)
turtle.forward(100)
turtle.left(90)
turtle.backward(150)
turtle.left(90)
turtle.forward(100)
turtle.right(90)
turtle.forward(50)
turtle.right(90)
turtle.forward(50)
turtle.left(90)
turtle.forward(50)
turtle.left(90)
turtle.forward(50)
turtle.right(90)
turtle.forward(50)

turtle.end_fill()
